Sawing-machine



(No Model.)

A. J. DEMOSS {in W. S. PEARCE.

SAWING MACHINE.

Patented Sept. 28, 1886.

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NITED STATES ANDREXV J AOKSON DEMOSS AND WVILLIAM S. PEARCE, OF NOBLESVILLE INDIANA. v

SAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 349,984, datedfieptember 28, 1886.

Application filed April 24, 1886. Serial No. 200,066. (No model.)

T 0 aZZ whom it may concern.-

Be it known that we, ANDREW JACKSON Dmross and WILLIAM S. PEARCE,citizens of the United States, residing at Noblesville, in the county ofHamilton and State of Indiana, have invented a new and usefulImprovement in Sawing-Machines, of which the following is aspecification.

Our invention relates to an improvement in sawing-machines; and itconsists in the peculiar construction and combination of devices, thatwill be more fully set forth hereinafter, and particularly pointed outin the claim;

In the drawings, Figurel is a side elevation of ourinvention. Fig. 2 isa top plan view of the same.

A represents a rectangular platform, which is provided on its ends withsupporting-wheels B, which enable the platform to be readily moved fromplace to place. From the center of the platform projects a verticalstandard, 0, and from one end of the platform, in a line with thestandard 0, projects a standard, D, which is somewhat higher than thestandard 0. A horizontal beam, E, connects the upper end of the standard0 with the standard D.

F represents a pair of inclined bars, the lower ends of which areattached to the platform near the front end thereof, the upper ends ofthe bars F being secured near the upper end of the standard 0. Thesebars are provided with a series of transverse openings, f.

G represents a bar, which has its inner end pivoted to one side of thestandard 0, near the lower end of the latter. The said bar passesbetween the inclined bars F, and is provided with an elongated slot, 5through which and through either of the openings f a pin, H, is passedfor the purpose of securing the bar G in any desired position.

To the outer end of the bar G is secured a detent-wedge, G, which isadapted to be driven into the upper side of the log of wood to be sawed,and thus prevent the log from rolling or moving during the operation ofthe machine.

I represents a vertical standard, which rises from one side of theplatform and is in a line with the standard 0. To the said standards Iand G are secured bearing-blocks K, in which is journaled a horizontalshaft, L. Near the center of the platform is made an open longi tudinalslot, c, and to the inner end of the sh aft L is attached a fly-wheel,M, the lower edge of which works in the slot c.

N represents a saw-frame, which is triangular in shape, being com posedofthe beams a, a, and a. The beam a is longer than the others, and itslower end project's downwardly beyond the outer end of the beam if. Theupper end of the frame N is pivoted to the upper end of the standard Don one side of the latter, and to the lower end of the beam at ispivoted the inner end of a saw, 0, the lower end of the beam n beingprovided with a series of transverse openings, 0, by means of which thepivotal connection of the saw with the said beam a may be adjustedvertically.

P represents a pitman, which connects the beam a with a crank-pin, whichprojects lrom one side of the fiy-wheel, thus connecting the saw-framewith the fly-wheel. Near the upper end of the beam a is made a slot, athrough which projects a pivoted guiding-arm, It, which is secured tothe beam E at one end.

A handle, S, projects rearwardly from the lower side of the saw-frame,and the latter is also provided with a series of guiding-rings,- throughwhich passes a cord or rope, T, one end of which is attached to thepivoted saw for the purpose of elevating the latter or the detent-wedgeto bear upon the upper side 0 of the log. The said wedge is then driveninto the log for a suitable distance, thus securing the log to themachine and holding it firm when the machine is in operation. The cord Tis then released and the pivoted saw low- 5 ered to bear on the upperside of the log, and the operator then grasps the handle F and moves itback and forth, thus oscillating the saw-frame and moving the saw backand forth across the log, thereby sawing the same, as

will be readily understood. The function of the fly-wheel, which isconnected to the sawframe, is to insure a steady and uniform motion ofthe saw. The function of the guidingarm R is to prevent the saw-framefroln vibrating laterally.

Having thus described our invention, we claim The combination, in asawing-machine, of the platform having the standards 0 and D in linewith each other, the standard I at right angles thereto and the inclinedbars F against the standard 0, and provided with the series of openingsf, the shaft L, journaled to standards G and I, and having the fiy-wheelM, the oscillating frame N, pivoted to the upper end In testimony thatwe claim the foregoing as our own we have hereto affixed our signaturesin presence of two witnesses.

ANDREW JACKSON DEMOSS. -WILLIAM S; PEARCE.

Witnesses:

J. B. HORTON, W. W. CONNER.

